files=`ls *.mp4`
for x in $files
do
ffmpeg -i 1横.mp4 -i delogo.png -i logo.png -filter_complex "overlay=x=80:y=15,overlay=x=1540:y=18" -movflags faststart -vcodec libx264 -b:v 700k -bufsize 700k -maxrate 800k -acodec copy -y -f mp4 ok/$x
done